Bobbin-winder



(No Model.) 9 W. OONNOLLY. BOBBIN WINDER Patented Feb. 16,1886.

INVENTOR ATTORNEYS.

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UNITED STATES PATENT FFICEQ WILLIAM CONNOLLY, OF SOUTH NORWALK, CONNECTICUT.

BOBBlN -wlNDER.

SPECIFICATION forming part of Letters Patent No. 336,296, dated February 16, 1886. Application filed January 20, 1885. Serial No. 153,424. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM CONNOLLY, of South Norwalk, in the county of Fairfield and State of Connecticut, have invented a new and Improved Bobbin-Vinder, of which the following is a full, clear, and exact description.

The object of my invention is to improve the construction of sewing-machine bobbinwinders so as to allow the bobbins to be filled with little attention of the operator and without waste of thread.

The invention consists in particular con-- stiuctions and combination of parts of the bobbin-winder, whereby, when the bobbins are placed on the shaft of the winder and the thread caught in them, they will be wound and they rotation of the bobbin and thread-spool will be stopped automatically when the bobbin is filled, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figurel is a side elevation of my improved bobbin-winder, also showing parts of the sewing-machine table and drive-wheel. Fig. 2 is a plan view thereof; and Figs. 3 to 10, inclu sive, are detail views illustrating the construcwinder.

The letter A indicates a part of the work plate or table of an ordinary sewing-machine, and B is the drive-wheel, fast on the shaft 0, which operates the needle-bar of the machine.

The letter D indicates a base-plate, (shown in this instance supported on a block, a, fixed to table A,) and E is an arm which is pivoted at d to the plate D, and has at its outer end a,

bearing, e, in which is journaled a shaft, F, which has fixed to one end the rubber, leather, or paper rimmed drive-wheel G of the winder, and at its other end is provided with a suitable split or other bearing on which the sewing-machine bobbins H, to be filled or wound with thread, are placed.

At I is shown the spool from which the threadz' is taken to be wound on the bobbins. I support the spool I on an elastic plate, J,

. which preferably is fixed to a threaded nut,

'7', fitted on the lower threaded end of aspindle tion and operation of parts of the bobbin-' or post, K, which in Figs. 1', 2, and 8 is shown screwed fast into one end of an arm, L, which arm has a slot, Z, at its other end, allowing it to be fastenedto the plate D by a screw, Z, passed through the slot, so as to hold the spoolpost K at the required distance from the drive wheel G when the wheel springs back to allow said wheel to strike the edge of spools of different sizes or diameters, as hereinafter more fully explained.

In the modification shown in Fig. 10 the arm L, which may be the bent lower end of the post K, passes through a projection, L,

formed on the base-plate D, and may be fastened in any required position by the set-screw L The vertical adjustment allowed the spool-support J j on the post K also permits spools of different diameters to be placed on the post K, and so that the spool-rims will be nut, 9', may be placed .on post K below the support J j, if desired. The elastic plate J serves as a cushion or yielding support to the spool, allowing it to rise and fall slightly, and thereby obviating any harsh jerking of the thread as it passes to the bobbin,which might otherwise be caused by a variable speed of the bobbin and spool while being Wound.

On the spool I a tension-weight, N is placed, said weight having a central hole,- through which the post K passes, and the weight has also a tubular prolongation, n, from one side, so that it may be placed on post K with the tube 12 uppermost for use, with small spools having holes which about fit the post, as shown in Fig. 9; ,or the weight may be used the other side up, with the tube it entered into the larger holes of larger spools, so that the tube serves to steady said spools on the post, as shown in Fig. 8. I make the end of the post K, on which the tube a fits, square, angular, or flat sided, as at k, Figs. 8 and 9, so that the weight N will not turn with the spool, thus giving greater friction on the spool and increasing the tension on the thread as it unwinds from the spool, to prevent snarling of the thread by overrunning momentum of the spool while the bobbin is being wound.

Instead of squaring or flattening the post K, and correspondingly shaping the hole in tube 12, to prevent turning of the weight N, I may I struck by the swinging wheel G. A checkroo at times extend the tube n downward and pro vide it with a lip or lug, as at n, to enter a notch or slot, a in plate J or its hub j, as shown in Fig. 10.

The letter 0 indicates a post, which is screwed or riveted to the plate D, and has a vertically-ranging slot, 0, through which an arm or tailpiece, P, fixed to the arm E, passes. The lower end of the post 0 is reduced in diameter, so as to receive a loose. collar, R, which collar has opposite vertical slots r, into the upper ends of which the opposite right and left hand horizontal slots r open, the upper ends of slots 1' being inclined or rounded over toward the branch slots r, so as to form cams at r, against which the tail-piece]? strikes when the bobbin drive-wheel G is swung into contact with the drive-wheel B of the machine, and so as to force the collar R around and cause the slots r to stand so as to inclose the tail-piece P, which then will be set and supported on shoulders which form the lower walls of the slots 1, as will be understood from Figs. 1, 3, and 4:. A spring, S, preferably of spiral form and placed around the post 0 and collar R, rests on the tailpiece, and a nut, s, screwed on the top of 'post 0, may be turned down more or less to regulate the tension of the spring, which acts to force down the tail-piece P, and carry the wheel G away from the wheel B and against the spool I, when the tail-piece is tripped from the slots 1' by the partial rotation of the collar R, as presently explained. A pin which may be entered into any one of a series of holes in post 0 may be used instead of the nut s.

The letter T indicates a trip-lever, which is pivoted at t-say on one end of the pivot-pin d, as shownand carries a pin, U, which pro- -jects from it into an inclined slot, a, formed in one side of the lower end of the collar R. I prefer to weight the inner end of the lever T, as at V, so that the outer end of the lever will tend to rise into the opening it between the side plates of the bobbin, and I prefer also to form a curved recess, 1), (see Fig. 6) at the inner side or edge of the lever and conforming somewhat to the contour of the thread on the bobbin when it is quite fully wound, so as to give a larger bearing of the thread on the lever to trip it, as hereinafter described. The collar-slot a is inclined in such manner that as the inner end of the lever T rises the pin U will act on one side wall of the slotin this instance its upper wall-to turn the collar R and release the tail-piece P from the retaining slots 7", and the opposite wall of the slot it acts on the pin U, when the bobbin is thrown back by the spring S,t-o hold or look the outer end of lever T away from or clear of the bobbins, as in dotted lines Fig. 1, to allow the filled bobbin to be removed and an empty one put in place to be filled.

' The operation, briefly stated, is as follows: The spool I is adjusted on the post K, and the thread i is passed through the eye M and caughtin the empty bobbin H placed on the shaft F. The arm E now is swung toward the drive-wheel B, which carries the tail-piece P along the slots 0 r of post 0 and collar R, respectively, and compresses the spring S, and .the piece P strikes the slot-cams 1?, which turns the collar partly around onthe post 0, so that the tail-piece may lock into the upper collar-slots, r, holding the wheel G against the wheel B, and as the collar had been turned on the post the inclined slot to had acted on the pin U to throw the end of lever Tinto the slot or opening h, or between the side plates of the bobbin, and at the same time the bobbin drive-wheel G comes against the drive-wheel B of the sewing-machine, which gives motion to the bobbin to wind the thread ithereon. As the bobbin fills, the thread presses the lever T out-ward, which causes the pin U, by action in slot u of collar R, to turn the collar to its first position, which trips the tailpiece from slots 1", and the spring S then acts on the tail-piece to swing the drive-wheel G away from the wheel B and carry said wheel G against the side of the spool I, so that this contact serves as a brake to stop the motion of both the bobbin and spool simultaneously. It will be understood that the spring holds the tripped tail-piece in that end of the slots 0 r nearest the plate D, and retains the pin U at or near the base of the collar-slot u,to lock the lever T so its outer end stands clear of the bobbin, so as to all w removal of the filled bobbin and application of an empty one, as hereinbefore described, which locking action allows the bobbin-winder to be used the other side up or inclined considerably from the position shown, as when the device is arranged with some sewing-machines, to throw the bobbin drive-wheel G into contact with the ma chine drivewheel by an upward swing of wheel G,instead ot'a downward swing of it,as above described.

It is obvious that any suitable brake stop may be provided on the plate D for the bob bin driving-wheel G to strike against to stop the bobbin when the wheel is automatically thrown back as the. bobbin fills, and the plate J may serve this purpose; butby utilizing the spool as the brake-stop to the bobbin the rotation of the spool also is stopped, so that the thread z'is not unwound from the spool any faster than it is reeled on the bobbins; hence there is no entanglement or waste of the thread, as results sometimes from the momentum of parts in other bobbin-winding devices,or the catching of loose ends of the thread in the operating parts of the sewingmachine. It will be seen that that the operator has only to start the thread into the bobbin and press the wheel G to the drive-wheel of the sewing-machine and the bobbin will be filled, and will then stop automatically and while the sewing-machine is at work, thereby saving considerable time of the operator, and also avoiding excessive wear and tear on the bobbin-winder spindle,

"which runs only while'the thread is being'laid on the bobbin. It is not essential that thetailpiece P pass entirely through the post 0 and through slots r r, made in opposite sides of the collar R, as a slot in one side only of the collar will suffice to turn it by the action of the tail-piece, as will readily be understood.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Abobbinwinder comprising a bobbinholding shaft provided with a drive-wheel, a swinging arm in which said shaft is journaled, a tail-piece fixed to said arm,a post slotted for the passage of the tail-piece, and a collar fitted loosely on the post and provided with slots to receive the tail-piece, and said slots being formed with cam-faces to turn the collar and shoulders to support the tail-piece,and thereby hold the bobbin drive-wheel to the sewing-machine drive-wheel substantially as herein set forth.

2. A bobbin-winder comprising a bobbinholding shaft provided with a drive-wheel, a swinging arm in which said shaft is journaled, a tail-piece fixed to said arm, a post slotted for the passage of the tail-piece, a collar fitted loosely on the post and provided with slots to receive the tail piece, and said slots being formed with cam-faces to turn the collar and shoulders to support the tailpiece and hold the bobbin drive wheel to the sewing-machine drive-wheel, and a spring acting on the tripped tail piece to separate said drivewheels, substantially as herein set forth.

3. A bobbin-winder comprising a bobbin' holding, shaft provided with a drive-wheel, a swinging arm in which said shaft is journaled, means for setting the arm to hold the bobbin and sewing-machine drive-wheels in contact, a spool-holding post, and a spring for swinging the bobbin drive-wheel into contact with the spool, to simultaneously stop the rotation of both bobbin and spool when the bobbin is filled, substantially as herein set forth.

4. A bobbin-winder comprising a bobbinholding shaft provided with a drive wheel, a swinging arm in which said shaft is journaled, a tail-piece fixed to said arm, a post slotted for the passage of the tailpiece, a collar fitted loosely on the post and provided with slots to receive the tail-piece, said slots being shaped to form cams and shoulders to turn the collar and support the tail-piece, a spool-holding post, and a spring for swinging the bobbin drive-wheel into contact with the spool when the tail piece is tripped, substantially as herein set forth.

5. The combination, in a bobbinwinder, of the swinging arm E, having a tail-piece, P, the shaft F, drive-wheel G, post 0, slotted at a, collar R,,slotted at r r, and spring S, substantially as herein set forth.

6. The combination, in a bobbin-winder, of the swinging arm E, having tail-piece P, the shaft F, drive-wheel G, post 0, slotted at 0, collar R, slotted at r 1", spring S, the spoolpost K,located to allow the wheel G to strike the spool, and the thread eye or guide M, substantially as herein set forth.

7. The combination, in a bobbin-winder, of a swinging arm, E, shaft F, drive-wheel G, a spool-post having an elastic spool-support adjustable on the. post and placed in the described relation to the drive-wheel G, and the thread eye or guide M, substantially as herein set forth.

8. A bobbin-winder comprising a bobbinholding shaft provided with a drive-wheel, a swinging arm in which said shaft is journaled, means for setting the swinging arm for holding the bobbin drivewheel into contact with the sewing-machine drive-wheel, and a lever positioned to be operated by the thread reeled on the bobbin, and connected with the setting devices of the swinging arm, so as to release said arm automatically when the bobbin is filled, substantially as herein set forth.

9. A bobbin-winder comprising a bobbinholding shaft provided with a drive-wheel and journaled in a swinging arm, E, carrying a tail-piece, P, a post,O,slotted for the passage of the tail-piece, a collar, R, fitted loosely on the post 0 and slotted at rm, and u, and the lever T, provided with a pin, U, entering inclined slot to at one end, and said lever extending to the bobbin,so as to be operated by the thread reeled thereon, substantially as herein set forth.

K 1.0. The combination, in a bobbin-winder, of the swinging arm E, having a tail-piece, P, the shaft F, drive-wheel G, post 0, slotted at o, collar R, slotted at r r and inclinedly at u, a spring bearing on the tail-piece to carry the wheel G from the sewing machine drivewheel, and the lever T, having a pin, U, entering the collarslot a and extending to the thread wound on the bobbin, substantially as herein set forth.

11. The coinbination,in a bobbin-winder, of

VILLIAM CONN OLLY.

\Vitnesses:

WILLIAM M. BARTHOLMES, GEORGE F. BARTHOLMES. 

